Download PMT200B SERIES DryLine® DEHYDRATOR USER MANUAL

PMT200B SERIES
DryLine® DEHYDRATOR
USER MANUAL
Bulletin AE01B-A0552-001
© 2009 - 2012 CommScope, Inc. All rights reserved.
Rev: L
(12/12)
PMT200B SERIES DryLine® DEHYDRATOR USER MANUAL
Table of Contents
Section 1
General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.1Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.2Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.3Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
1.4Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Figure 1 — Terminal Strip Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Figure 2 — Terminal Strip Discrete . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Figure 3 — Pin and Jumpers Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Section 2
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.1
Unpacking and Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
2.1.1 Installation Kit Items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.2
Controls and Displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
2.2.1 Event Log Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
2.3
Installing the Dehydrator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.3.1 Wall Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
2.4
Power Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.4.1 AC Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
2.4.2 DC Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.5
Connecting the Alarm Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.6
Connecting Dehydrator to the Transmission Line . . . . . . . . . . . . . . . . . . . . . . . . . . .8
2.7
Checking Individual Line Pressures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.8
Purging the Transmission Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
2.9
Adjusting Output Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Section 3
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10
3.0Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.1
Regular Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.2
Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.3
Dehydrator Filter Element Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.4
Annual Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.4.1 Check the ground wire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.4.2 Check the hour meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.5
Parts Replacement and Dehydrator Overhaul . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.5.1 In Case Of Difficulty: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.5.2Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.5.3 Overhaul Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.5.4 Unit Shutdown and Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.5.5 Remove the compressor for overhaul . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.6
Service Restoration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Section 4
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Section 5
Figure 4 — Wire Schematic with Summary Alarm . . . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 5 — Wire Schematic with Discrete Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 6 — PMT200B Pneumatic Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Overhaul Kit PMT200B–KIT–OVRHL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Filter Element Replacement Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
PMT200B–KIT–ELMNT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2
PMT200B SERIES DryLine® DEHYDRATOR USER MANUAL
Filter Bowl Assemble Replacement Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
PMT200B–KIT–FLTRS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Filter Bowl Assemble and Dryer Tube . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Replacement Kit PMT200B–KIT–DRYER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Solenoid Replacement Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
PMT200B–KIT–SOLND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Section 6
Customer Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
6.0Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
6.1
In Case of Trouble . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
6.2
Initial Steps by CommScope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
6.3
Repair Center Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
6.4
RoHS Inquiries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Section 7
DC Inverter Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
7.1Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
7.2
Installing the 24 Vdc to AC inverter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
7.3
Installing the 48 Vdc to AC inverter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3
PMT200B SERIES DryLine® DEHYDRATOR USER MANUAL
The PMT200B maintains transmission line
pressures at 21 kPa (3.0 psig). It is intended
for standard microwave antenna applications
and any other transmission line pressurization
requirement that supports a medium pressure
limit. The output pressure is adjustable from
13.8 kPa (2.0 psig) to 41.4 kPa (6.0 psig).
Section 1
General Information
1.1Introduction
This manual contains the information you need
to install, operate and maintain your PMT200B
Series DryLine® dehydrator. Please take the time
to read this manual before attempting to operate
or service the unit.
1.3Operation
PMT200B Theory of operation.
The PMT200B series of DryLine® dehydrators,
while similar in moisture removal technology,
operates differently than some of the
DryLine® series of dehydrators. In order to
provide a constant supply of dry air to small air
volume systems, and to maintain an acceptable
dryness level in the product air stream, a highpressure reservoir tank is utilized. This reservoir
tank is connected to a pressure regulator and
orifice to yield a fixed output pressure of 21
kPa (3.0 psig) and a nominal flow rate of 5.7
SLPM (0.2 SCFM). In addition to supplying
the output air, the reservoir tank also provides
the dry air for the feedback loop. The feedback
loop is necessary to maintain the dryness of the
membrane cartridge.
This appliance is not intended for access by
the general public.
This appliance is not intended for use by
persons (including children) with reduced
physical, sensory or mental capabilities,
or lack of experience and knowledge,
unless they have been given supervision or
instruction concerning use of the appliance
by a person responsible for their safety.
During normal operation, the bleed air in the
feedback loop will cause the pressure to slowly
drop in the internal reservoir tank, and the
PMT200B compressor will cycle automatically.
These cycles will take place regardless of the
system volume or condition of the transmission
line the dehydrator is connected to. The rate of
these cycles, however, will vary.
1.2Description
When connected to a very tight system, or
the output is capped, the dehydrator will cycle
approximately every 60 minutes and maintain
21 kPa (3.0 psig) system pressure. When
open to atmosphere, the dehydrator will
cycle approximately every 3 minutes while
providing close to 5.7 SLPM (0.2 SCFM) of
dry air. A system that leaks will have a cycle
time somewhere in between, depending on the
severity of the leaks.
PMT200B Series DryLine dehydrators provide
dry air for pressurizing small (up to 1700 liters
(60 ft3), in volume) antenna and transmission
line systems. The dehydrators produce –45º C
(–50º F) dewpoint dry air at an output rate of 5.7
SLPM (0.2 SCFM).
®
Each dehydrator consists of an electricallydriven air compressor, a membrane dryer
assembly, an automatic transmission line
pressure sensing system and alarm outputs
housed in a rigid metal chassis. It is designed to
mount directly to the wall or as a free-standing
unit. The front panel features a control interface
with display for alarms and pressure. For
easy serviceability, power connections, alarm
output connections and all filter elements are
accessible from the top or front of the unit.
The display will also reflect a pressure between
0 and 21 kPa (3.0 psig) while the output flow
is between 0 and 5.7 SLPM (0.2 SCFM). The
pressure sensor tracks the pressure beyond
the flow control orifice and will show the actual
pressure in the transmission lines (or to the
distribution manifold).
4
PMT200B SERIES DryLine® DEHYDRATOR USER MANUAL
During the initial pressurization of the
transmission line, the dehydrator will cycle
every 2 to 4 minutes with the system at 0 psig
pressure. As the dehydrator pressurizes the
system, the cycle times will increase and the
pressure will rise until the dehydrator output is
balanced with the system leak, at which point
the cycle times will stabilize.
DISCRETE Alarm
WIRE
WIRE
ALARM
TERMINALCOLOR FUNCTION
1.4Alarms
The PMT200B offers Low Pressure and Excess
Run alarms as a standard feature; a summary
alarm connection is provided on all units. Alarm
conditions are indicated on the display. The
alarms are Form C dry contacts and have
connection options for normally open (NO) or
normally closed (NC) configurations.
The external alarm monitoring system (supplied
by others) is connected to the terminal
strip located on top of the cabinet. A small
slotted screwdriver is necessary to make the
connections.
Pin 1
SUMMARY NO
SUMMARY COM
SUMMARY NC
Pin 1
Activates when the Excess Run, and/
or Low Pressure alarms are triggered.
It will also report High Humidity if unit
is equipped with full alarms. The
summary alarm does not report Power
Fail.
Power Fail:
Activates when power is removed from
the dehydrator. This includes turning
the power off at the switch.
Factory run time set in accordance
with the normal run time for the
dehydrator application. Selectable
times are 1, 10, 30, 120 and 240
minutes, with the 10 minute selection
used on the PMT200B as the default
setting.
Low Pressure: If system pressure falls below the
low–pressure trigger point (6.9 kPa
(1.0 psig) on the PMT200B), the lowpressure alarm sensor will activate
an alarm contact. This alarm is an
indication of a significant system leak
or a dehydrator failure.
Summary Alarm
WIREWIRE
ALARM
TERMINAL COLORFUNCTION
RED
WHITE
BLACK
Summary:
Excess Run:
Figure 1 — Terminal Strip Summary
1
2
3
EXCESS RUN NO
EXCESS RUN COM
EXCESS RUN NC
HIGH HUMIDITY NO
HIGH HUMIDITY COM
HIGH HUMIDITY NC
POWER FAIL NO
POWER FAIL COM
POWER FAIL NC
LOW PRESSURE NO
LOW PRESSURE COM
LOW PRESSURE NC
High Humidity: Activates when system or dehydrator
output humidity rise above 7.5%
relative humidity. At initial installation,
this alarm will continue to alarm until
the system has been properly purged.
The connections to the alarm strip are as
follows; refer to Figure 1 for correct locations
and colors of the wires on the terminal strip
WHITE
TAN
BLUE
BROWN
PINK
GREEN
BLACK
VIOLET
RED
ORANGE
YELLOW
GRAY
Alarm Definitions:
Additionally, a discrete alarm option is available
with discrete connection for Low Pressure,
Excess Run, High Humidity and Power Fail
alarms. The discrete alarm version also
includes a summary alarm contact.
Pin 3
1
2
3
4
5
6
7
8
9
10
11
12
Pin 12
Note: All of the alarms clear and reset automatically,
but can be manually reset in the display menus.
However, if the alarm condition still exists, the alarm
will return immediately after being reset.
Figure 2 — Terminal Strip Discrete
5
PMT200B SERIES DryLine® DEHYDRATOR USER MANUAL
NOT IN
USE
USB
P1
HIGH PRESSURE
SENSOR
U2
Vdc INPUT
P2
(MR050B
ONLY)
HUMIDITY
SENSOR
P3
115 Vac
COMP
OUTPUT
P4
LOW
PRESSURE
SENSOR
U2
(MT/PMT SERIES)
SOLENOID
(FILTER DRAIN
MT/PMT SERIES)
P6
AC MAIN
[
[
SUM ALARM
P8
NOT IN USE
P7
1.5
KEYPAD
J4
(NO/NC)
DISCRETE ALARMS
P9
Figure 3 — Pin and Jumpers Location
Specifications PMT200B Dehydrator
Output Pressure Constant, kPa (psig)
Output capacity
Height, cm (in)
Width, cm (in)
Depth, cm (in)
45.7 (18)
44.45 (17.5)
17.8 (7)
16.55 (36 1/2)
Alarms
–45° C (-50° F)
or better
Operating Temperature Range
Output Connector
Dimensions
Net weight, kg (lb)
340 SLPH (12.0 SCFH)
5.6 SLPM (0.2 SCFM)
(total, approx.)
Output Dew Point,
Electrical Input 21 (3.0)
Power Fail Alarm
-10° to +50° C
(+14° to +122° F)
High Humidity Alarm Set Point 115 ±10% Vac, 60 Hz
240 ±10% Vac, 50 Hz
24 or 48 Vdc with Inverter
Excess Run Alarm Low Pressure Alarm, kPa (psig)
3/8” polytube, compression
6
loss of input power
7.5% RH,
factory set
10 minutes, factory set
6.9 (1.0)
PMT200B SERIES DryLine® DEHYDRATOR USER MANUAL
Keypad Controls:
Section 2
Installation
2.1
Advances display (scrolls ahead) to the
next display or program mode with out
changing the values in the microprocessor
memory.
Unpacking and Inspection
Open carton.
Enters into the microprocessor memory
the values displayed in the window and
advances display (scrolls ahead) to the
next program or display mode.
Numerically increase displayed settings in
display window. When depressed longer
than 1/2 second scrolling will occur at a
faster rate.
Numerically decrease displayed settings
in display window. When depressed
longer than 1/2 second scrolling will occur
at a faster rate.
Used to allow the user quick access to the
system event log.
Check the dehydrator for shipping damage such
as dents or loose parts.
2.1.1 Installation Kit Items
Polyethylene Tubing Kit,
(25 FT)
PTFE Tape, 1/4 Wide
(1 Roll)
Ball Valve, 3/8 Poly To 3/8 Poly
(1)
Male Conn, 3/8" Poly To 1/8 NPT Male
(2)
Street Elbow Fitting, 1/8 NPT (M-F)
(2)
Power Cord, w/Nema 515p Plug (North
America)(1)
Power Cord, IEC, Harm, (Stripped Leads) (1)
Screw Pan Head, 10-32 X .50,
w/Plastic Washer
(8)
2.2
2.2.1
Event Log Codes
EV= 0 Event = Power Up
EV= 1 Event = High Humidity Alarm
EV= 2 Event = Excessive Run Time Alarm
EV= 3 Event = Low Pressure Alarm
EV= 4 Event = High Pressure Alarm
Controls and Displays
Default password is 1111
EV= 5 Event = Compressor Fault
Familiarize yourself with the controls and
displays prior to installing or testing the
dehydrator.
EV= 6 Event = Log Cleared
EV= 7 Event = Powering Down
EV= 8 Event = Compressor Lifetime Eeprom
Fail
2.3
Installing the Dehydrator
2.3.1
Wall Mounting
See drill template AE01B-D0526-001 included
with installation kit.
7
PMT200B SERIES DryLine® DEHYDRATOR USER MANUAL
1.00
8.00
Proper electrical connection is required. It is
suggested a licensed electrician be contracted to
connect the AC wiring to the unit, if it is connected
directly to the mains. Failure to properly connect the
power wires could result in a dangerous electrical
shock hazard.
PMT200A WALL DRILL
TEMPLATE
AE01B-D0526-001
CAUTION:
This unit is designed for connection to a single
phase power source. Connection to a 3 phase
power source will cause significant damage to
internal components.
REV: B
INSTRUCTIONS:
1. Tape template to wall.
2. Use marked holes as drill template.
3. Use appropriate screws (minimum size #10) and anchors for
wall material, and dehydrator weight.
2.4.2
9.50
For details see section 7.
Test the Dehydrator
To insure that all internal dehydrator components
are properly dried, operate the DryLine® unit for
at least 45 minutes prior to connecting the output
air line to the transmission line system.
Turn the dehydrator ON there is about a 4
second delay and check the output ports on top
of the unit to make sure air is flowing. To do this,
make sure that corresponding shut-off valve is
open and the plugs are removed from the ports.
Power Connections
Confirm your dehydrator electrical input matches
the available power.
2.5
Pin 1
PMT200B-81015 and PMT200B-81315
115 ±10% Vac, 60 Hz
24 or 48 Vdc with Inverte
Pin 12
Place alarm connection wires in proper terminals
and tighten the screw on the terminal block.
PMT200B-81026 and PMT200B-81326
240 ±10% Vac, 50 Hz
(See Section 1.4 for alarm location)
The relay contacts are rated at 2 A (noninductive), 30 Vdc.
AC Power
2.6
AC units should be connected into a standard 15
A power receptacle of the proper voltage. Make
sure the power circuit is properly grounded.
Two power cords are supplied, one 115 Vac
American and one 240 Vac International.
Connecting the Alarm Outputs
To connect the alarms, locate the terminal block
(TB–1) on top of the unit.
Ensure an electrical safety ground is installed on
the ground stud located adjacent to the power
input connector. (It is intended to be customer
installed in the field to your halo grounding
system.)
2.4.1
DC Power
The PMT200B can operate on 24 Vdc or 48 Vdc
with the addition of an optional inverter.
Caution:
Check the system pressure rating before connecting
the dehydrator to the transmission line system.
2.4
CAUTION:
8
Connecting Dehydrator to the Transmission Line
CAUTION:
Check the antenna and transmission line system
pressure rating before connecting the dehydrator to
the system.
PMT200B SERIES DryLine® DEHYDRATOR USER MANUAL
Using supplied PTFE tape screw one of the
included 3/8” compression fittings into the output
bulkhead. There is an elbow and a straight
compression fitting included with the unit.
2. Wait 15 minutes while the air absorbs
moisture in the system, then disconnect the
dehydrator from the transmission line and
allow the air to vent.
3. Repeat steps 1 and 2 twelve times to purge
the system.
Insert one end of the 3/8 in, polytube feed
line tubing into the compression fitting on the
dehydrator output port. Tighten securely with a
9/16 in, wrench. Be careful not to over tighten. Connect the other end of the polytube to the
transmission line.
2.9
Output pressure can be adjusted between
13.8 kPa (2.0 psig) and 41.4 kPa (6.0 psig)
- adjustment outside this range will have a
negative impact on the performance of the
dehydrator.
Four air outputs are provided, with individual
shut–off valves on the unit. Make sure that
the valve is in the open position for each
transmission line connection. If one of the
output connections is not used, close the valve
and leave the port capped.
2.7
Checking Individual Line Pressures
In order to check individual line pressures with
the PMT200B, you will need to close the valves
on all of the lines except for the one that you
are checking. With the keypad, scroll to the
“System Pressure” screen and the reading is the
pressure on the isolated line. Repeat with each
additional line and don’t forget to re-open all of
the valves when finished.
NOTE: Some components have been removed for
clarity to see the regulator.
1. Locate regulator
Note: If the transmission lines have not been
purged, continue with section 2.8. Otherwise
proceed to section 3.
2.8
Adjusting Output Pressure
2. Loosen lock nut
Purging the Transmission Line
3. With unit running turn stem CW to increase.
CCW to decrease output pressure.
Air in the transmission line system must be
replaced with dry air to ensure satisfactory
operation of the transmitted signal.
4. Place finger on output to verify pressure
setting on the front display.
5. Repeat step 3 and 4 until desired pressure is
set.
1. Determine the total system volume.
6. Tighten lock nut and return unit to service.
2. Divide the system volume by the flow rate
of the dehydrator 340 SLPH (12 SCFH) to
determine the number of hours needed for
the purge cycle.
3. Open the far end of the transmission line.
4. Operate the dehydrator for a minimum three
purge cycles. If possible, operate for 12
purge cycles to completely dry the line.
If it is not possible to open the far end of the
transmission line, follow these steps:
1. Connect the dehydrator to the transmission
line and pressurize the system. The system
pressure should reach 21 kPa (3.0 psig).
9
PMT200B SERIES DryLine® DEHYDRATOR USER MANUAL
Section 3
Operation
3.4
Warning:
Electrical Hazard! Unplug power cord before
servicing unit.
3.0Maintenance
The PMT200B DryLine® Dehydrator requires
relatively little maintenance to ensure
satisfactory operation over long periods of time.
This section outlines the recommended annual
preventive maintenance for the unit and the
suggested overhaul for every 6000 hours of
compressor operation.
3.1
Inspection includes checking for loose
or damage hoses, fittings and electrical
connections. Open the top panel or front door
and verify that there is no water build-up in the
two filter bowls located inside the front cover of
the dehydrator. There may be some droplets
of water in the filter bowls (the lower portion of
each bowl), but there should be only a small
amount of liquid in either bowl.
Regular Maintenance
The PMT200B DryLine® Dehydrator performs at
its optimum if it is routinely checked for correct
performance. This checking generally consists
of an annual inspection of the condition of the
air intake filter and an overhaul after every 6000
hours of compressor operation. Performance of
these measures is sufficient to ensure continued
reliable operation.
3.2
Annual Inspection
Preventive Maintenance
The annual maintenance of a PMT200B consists
of a preventative maintenance inspection of the
dehydrator and cleaning (or replacement) of the
foam air intake filter.
These tasks can easily be performed in the
field with the unit connected to the transmission
line system and with only the front access door
opened for maintenance.
3.3
If there is excessive water, refer to the
troubleshooting section. Replacement of the
filter elements in the water filter and coalescing
filter is covered in the overhaul section of this
manual.Check the electrical connections.
Dehydrator Filter Element Replacement
Check the screw at the power input connector
to ensure that the AC power cord is securely
terminated. Check the screw-in alarm terminals
to ensure that all wire connections are tight.
Replace the air intake filter
The air intake filter protects the compressor from
contamination and dust. Periodic replacement
extends the life of the compressor. To gain
access to the element, push in on the cover and
rotate the house approximately 1/4 turn CCW. The filter is made of a fibrous material. It should
be replaced once a year (or more frequently, if
the operating environment is very dusty.)
A loose or damaged connection may result in
erratic operation and unnecessary downtime.
Refer to the troubleshooting section if an
electrical problem is encountered.
3.4.1
CAUTION:
Ensure an electrical safety ground is installed on
the ground stud located adjacent to the power
input connector. (It is intended to be customer
installed in the field to your halo grounding
system.)
Do not apply oil or other chemicals to the filter
element.
Make sure the element is seated completely in
the housing and then replace the cover. If a new
element is used, discard the old element.
Check the ground wire.
10
PMT200B SERIES DryLine® DEHYDRATOR USER MANUAL
3.4.2
3.5.4
Check the hour meter
In order to perform an overhaul on the
PMT200B, the unit must be turned off and
removed from service. As this is being done,
the low pressure alarm may active through a
reporting alarm system. Personnel monitoring
such an alarm should be notified in advance
so that they are aware of the fact that service
is being performed. It is also necessary to
disconnect the dehydrator dry air output from the
waveguide system during the overhaul.
Check the hour meter in the display to help to
determine the duty cycle of the dehydrator.
If the dehydrator has been running for more
than 20% of its installed time, check the systems
for leaks. Also check the time on the meter to
determine if it is time to perform the 6000–hour
overhaul.
3.5
Parts Replacement and Dehydrator Overhaul
3.5.5
CommScope PMT200B DryLine® Dehydrators
are designed to give many years of trouble-free
service and require very minimal maintenance.
The dehydrator contains, as a standard
feature, an electronic hour meter that records
compressor run hours. To ensure continuous
and reliable operation, the dehydrator must be
overhauled every 6000 hours of compressor
operation. The overhaul kit, listed below,
contains all of the necessary parts to perform
this overhaul. The dehydrator overhaul kit
includes parts to overhaul the compressor and
critical components in the dehydrator that often
become worn over time.
3.5.1
Remove the compressor for overhaul.
In Case Of Difficulty:
If the dehydrator is not operating, refer to
Section 2 on Installation and Section 4 on
Troubleshooting the unit.
1. To remove the compressor, open the upper
front panel of the unit..
3.5.2Tools
The following tools are used in the maintenance
and overhaul procedures.
3.5.3
Unit Shutdown and Removal
•
Adjustable open—end wrench
•
Allen wrench 5/32
•
#2 Phillips screwdriver
•
Small flat-blade screw-driver
Overhaul Procedure
When the PMT200B compressor run time
reaches 6000 hours (or a multiple of 6000
hours) it is time to replace certain items in the
compressor and the air path of the dehydrator.
These include the piston cups, piston seals
and head gaskets of the compressor, the filter
elements in the water and coalescing filters,
and the tube section connecting the compressor
output to the coalescing filter input.
11
PMT200B SERIES DryLine® DEHYDRATOR USER MANUAL
Follow the instructions included in the
compressor overhaul kit. When the overhaul is
complete, reinstall.
3.6
Service Restoration
RECOMMENDATION:
If the dehydrator overhaul process has taken
more than a few hours, it is recommended that
the unit be run for one hour into the room, to
purge the membrane dryer and tank of any
acquired moisture, before reconnecting to the
transmission line system..
2. Disconnect compressor wiring from control
board.
(Board is shown pulled out for clarity)
3. Disconnect tubing from filter bowl assembly
input.
4. Remove screws from the bottom of chassis
holding the rubber isolators.
12
PMT200B SERIES DryLine® DEHYDRATOR USER MANUAL
Section 4
Troubleshooting
If you experience difficulty with your dehydrator, use the troubleshooting procedures described below.
Caution:
Electrical troubleshooting requires access to potentially dangerous voltages and should only be
performed by a licensed electrician.
Problem/Condition
Solution
If the display light falls to light, make sure the unit is
plugged in and power outlet is operating.
Dehydrator display does not light, unit does not run.
If you still have no light, unplug the unit, remove the unit
cover and check for loose connections. Refer to the wiring
diagram for proper connections. Figure 4 for summary
alarm unit or figure 5 for discrete alarm unit
Check to ensure that proper AC voltage is being supplied
to the input.
Turn shut-off valve to the off position and observe
pressure gauge. The pressure gauge line should read
approximately 21 kPa (3.0 psig) and the alarm should
clear. If alarm does not clear, remove cover and verify
tubing and wiring connections are secure.
Low-pressure alarm activated.
If the pressure does not stay constant after shutting off
the valve, apply leak detector to isolate the leak in the
dehydrator (exercise care when applying solution not to
wet wiring or electronics).
With dehydrator isolated from transmission line, observe
pressure in transmission line. If pressure drops, use a
leak detector solution to locate leaks in the transmission
line. Repair leaks if possible.
If the problem persists contact CommScope Customer
Service. (see section 6.0)
Check the display on the controller. Toggle the ON/OFF
switch (attached to power connection).
Compressor does not turn.
Check input voltage per wiring diagram
If the problem persists contact CommScope Customer
Service. (see section 6.0)
Ensure that the drain line tubing (exiting the bottom of
the drain solenoid) is not clogged. When the compressor
cycles off, air and moisture should flow out of the drain line
(into drain pan).
Filter bowls show excessive water.
If solenoid does not vent, verify proper voltage is present
when compressor is running and absent when compressor
is off.
If proper voltage is present and solenoid does not shift,
replace solenoid. (See section 5 for replacement parts.)
13
DISCRETE
ALARMS
P9
THERE IS A GROUND
STUD ON THE DOOR
A GREEN/YELLOW
STRIP WIRE FROM
THE DOOR GROUND
STUD TO THE
CHASSIS GROUND
STUD.
SUM
ALARM
P8
RED
WHITE
BLACK
BLACK
ORANGE
WHITE
6
14
1
BROWN
BLUE
GREEN
LIGHTNING
ARRESTOR
GROUND
WHITE
BLACK
BLACK
WHITE
GREEN WITH
YELLOW STRIP
GROUND
Figure 4 — Wire Schematic with Summary Alarm
EMI
FILTER
FACTURY INSTALLED JUMPER
HARNESS ON -81026 AND -81326
DETAILS.
240 VAC JUMPER HARNESS
WHITE
BLACK
POWER
SWITCH
SOLENOID
Compressor
PMT200B SERIES DryLine® DEHYDRATOR USER MANUAL
THERE IS A GROUND
STUD ON THE DOOR
A GREEN/YELLOW
STRIP WIRE FROM
THE DOOR GROUND
STUD TO THE
CHASSIS GROUND
STUD.
}
GRAY
YELLOW
ORANGE
RED
VIOLET
BLACK
GREEN
PINK
BROWN
BLUE
TAN
WHITE
HUM
Senior
PURPLE
YELLOW
BLANK
HUM P3
DISCRETE
ALARMS
P9
BLACK
ORANGE
WHITE
6
15
1
BROWN
BLUE
GREEN
GROUND
LIGHTNING
ARRESTOR
EMI
FILTER
WHITE
BLACK
BLACK
WHITE
GREEN WITH
YELLOW STRIP
GROUND
Figure 5 — Wire Schematic with Discrete Alarm
SUM
ALARM
P8
RED
WHITE
BLACK
FACTORY INSTALLED JUMPER
HARNESS ON -81326 AND -81026
DETAILS.
240 VAC JUMPER HARNESS
WHITE
BLACK
POWER
SWITCH
SOLENOID
Compressor
PMT200B SERIES DryLine® DEHYDRATOR USER MANUAL
TANK
ASSEMBLY
16
SOLENOID
DRAIN
REGULATOR
ASSEMBLY
Figure 6 — PMT200B Pneumatic Diagram
COMPRESSOR
CONTROL BOARD
REAR VALVE
ASSEMBLY
DRYER AND
FILTER BOWLS
FRONT VALVE
ASSEMBLY
PMT200B SERIES DryLine® DEHYDRATOR USER MANUAL
PMT200B SERIES DryLine® DEHYDRATOR USER MANUAL
Section 6
Customer Service
Section 5
Replacement Parts
6.0Introduction
Go to commscope.com eCatalog for the most
current parts available for your dehydrator.
CommScope provides in-warranty and outhttp://ZZZ.commscope.com/SURGXFWcatalog/#market-wireless
of-warranty repairs as well as dehydrator and
compressor overhauls from several Repair
Centers. Coordination of these services is
provided through the nearest Sales Office or
Customer Service Center. The Center is also
prepared to help you with the following:
Overhaul Kit
PMT200B–KIT–OVRHL
6.1
Filter Element Replacement Kit
PMT200B–KIT–ELMNT
•
Technical Assistance
•
Troubleshooting
•
Repairs
•
Loaner Units
•
Spare Parts
•
Installation Materials
•
System Accessories
In Case of Trouble
The first step you should take if trouble
develops using a dehydrator is to read the
operators manual and follow the trouble isolating
procedures given in it.
If the steps in the manual do not identify
and remedy the problem, then contact an
CommScope Customer Service Center for 24–
hour telephone assistance. Record the Model
Number (e.g. PMT200B) and Serial Number
from the product label, as you will be asked for
these when you call. Two main locations are
currently available to help:
Filter Bowl Assemble Replacement Kit
PMT200B–KIT–FLTRS
From North America
Telephone: 1-800-255-1479
Fax (U.S.A.): 1-800-349-5444
International
Telephone: +1-779-435-6500
Fax Number: +1-779-435-8579
Filter Bowl Assemble and Dryer Tube
Replacement Kit PMT200B–KIT–DRYER
Web Access
Internet: www.commscope.com
email: #[email protected]
Solenoid Replacement Kit
PMT200B–KIT–SOLND
17
PMT200B SERIES DryLine® DEHYDRATOR USER MANUAL
6.2
Initial Steps by CommScope
account. Damages to loaner will be deducted
from the P.O.
When your call or fax communication is
received, the CommScope staff will work with
you to pinpoint the possible cause of trouble. If
the pressurization equipment is suspect, they
will:
6.3
•
ask for your unit Model Number and Serial
Number
•
check the warranty status of the unit
•
advise the availability of a loaner unit
•
provide an estimate of the cost for inspection
and repairs, if the unit is out–of–warranty
•
fax a Return Material Authorization Sheet to
you.
PACKING INSTRUCTIONS: Pack your unit
securely for shipment to the Repair Center.
If you received a loaner unit, we suggest you
use the box and packing materials to return
your unit. Otherwise we have factory packing
materials available for a nominal fee. Enclose a
completed copy of this form inside the box and
clearly mark your Company Name and RMA:
XXXXXXX on outside of the box. Address the
box to the following Ship–To Address:
CommScope PESSURIZATION SERVICE
CENTER
RMA# XXXXXXX
11312 S. PIPELINE RD.
EULESS, TX. 76040-6629
Repair Center Process
A method of Payment must be provided prior
to issuing of RMA regardless of warranty
status.
Please note, Units received with Biological/
animal contamination will be returned
unrepaired or scraped after notification
and you will be invoiced for inspection and
freight.
IN–WARRANTY REPAIR: Most CommScope
pressurization products carry a warranty of one
to three years, depending upon model number.
Warranty details are available on our web
page. If your unit falls within its warranty period,
inspection and repairs will be performed at no
charge and the unit will be promptly returned
to you. If a warranty unit is deemed no problem
found an inspection fee and freight will be
charged to the customer.
CONTACT NUMBERS: If you have any
questions about the repair process or status of
your unit, please contact us directly through one
of the following methods – Telephone (below)
TEL:817-864-4150
817-864-4155
FAX:817-864-4179
OUT–OF–WARRANTY REPAIR: We will inform
you with the cost of repair and obtain your
approval to proceed with repairs or, if you elect
not to have the unit repaired, your instructions
on disposition of your unit. When repairs are
complete, we will return your unit and invoice
you for the inspection charge, materials used
for the repair and labor applied to complete the
repair. If you elected not to repair the unit, we
will invoice you for the inspection and freight
charge if unit is to be returned.
LOANER UNITS: Loaner units are available
from the repair center to maintain your system
while repairs are being performed. If you feel
you need a loaner, please contact us at at one
of the numbers listed under contact numbers.
A P.O. for the full value of the unit must be
issued prior to shipment. Also contact us when
the loaner is ready to be returned so that we
can issue a NEW RMA number to identify your
return and create the appropriate credit to your
6.4
RoHS Inquiries
For inquiries on RoHS please contact the
following:
CommScope Inc.
Corke Abbey, Bray Co.,
Dublin, Ireland
Attn: Legal Department
18
PMT200B SERIES DryLine® DEHYDRATOR USER MANUAL
Section 7
DC Inverter Option
7.1Introduction
The standard 115 Vac unit can be run on an
inverter with the input of 24 or 48Vdc inverter.
The inverters are available in either 24 or 48
Vdc. Due to the induction of a dc motor in the
compressor pulling so many amps and the cost
of a dc compressor we choose to power the
units with an inverter to keep the cost down
and reduce the induction load on your battery
systems.
7.2
Turn inverter on. Only green LED’s should be
illuminated.
Turn on Dehydrator.
Installing the 24 Vdc to AC inverter
Remove the inverter from its packaging and
install in desired location. The inverter can be
placed on a flat surface or mounted to a wall
via the flanges and slots on the bottom of the
inverter.
Verify power switch is turned off on the inverter.
Connect the power cord from the dehydrator to
the AC receptacle located on the left side of the
inverter.
Connect the DC power to the lugs located
on the right side of the inverter to the battery
system. Ensure the polarity is correct. Improper
connection can damage inverter and void
warranty.
19
PMT200B SERIES DryLine® DEHYDRATOR USER MANUAL
7.3
Installing the 48 Vdc to AC inverter
Remove the inverter from its packaging and
install in desired location. The inverter can be
placed on a flat surface or mounted to a wall
via the flanges and slots on the bottom of the
inverter.
Turn inverter on. Only green LED’s should be
illuminated.
Turn on Dehydrator.
Verify power switch is turned off on the inverter.
Connect the power cord from the dehydrator to
the AC receptacle located on the left side of the
inverter.
Connect the DC power to the lugs located
on the right side of the inverter to the battery
system. Ensure the polarity is correct. Improper
connection can damage inverter and void
warranty.
20